<template>
    <div class="xtx-cart-page">
      <div class="container">
        <XtxBread>
          <XtxBreadItem to="/">首页</XtxBreadItem>
          <XtxBreadItem>购物车</XtxBreadItem>
        </XtxBread>
        <div class="cart">
          <table>
            <thead>
              <tr>
                <th width="120"><XtxCheckbox :modelValue="$store.getters['cart/isAllSelect']" @change="checkAll">全选</XtxCheckbox></th>
                <th width="400">商品信息</th>
                <th width="220">单价</th>
                <th width="180">数量</th>
                <th width="180">小计</th>
                <th width="140">操作</th>
              </tr>
            </thead>
            <!-- 有效商品 -->
            <tbody>
                <tr v-if="$store.getters['cart/validList'].length===0">
                    <td colspan="6">
                        <CartNone />
                    </td>
                </tr>  
              <tr v-for="item in $store.getters['cart/validList']" :key="item.skuId">
                <td><XtxCheckbox @change="$event => checkOne(item.skuId, $event)" :modelValue="item.selected"/></td>
                <td>
                  <div class="goods">
                    <RouterLink :to="`/product/${item.id}`"><img :src="item.picture" alt=""></RouterLink>
                    <div>
                      <p class="name ellipsis">{{ item.name }}</p>
                      <!-- 选择规格组件 -->
                      <CartSku @change="$event => updateCart(item.skuId, $event)" :skuId="item.skuId" :attrsText="item.attrsText"/>
                      <!-- <p class="attr">{{ item.attrsText }}</p> -->
                    </div>
                  </div>
                </td>
                <td class="tc">
                  <p>&yen;{{ item.nowPrice }}</p>
                  <p v-if="item.price - item.nowPrice > 0">比加入时降价 <span class="red" >&yen;{{item.price - item.nowPrice}}</span></p>
                </td>
                <td class="tc">
                  <XtxNumbox @change="$event => updateCount(item.skuId, $event)" :num="item.stock" :modelValue="item.count"/>
                </td>
                <td class="tc"><p class="f16 red">&yen;{{ item.nowPrice*100*item.count/100 }}</p></td>
                <td class="tc">
                  <p><a href="javascript:;">移入收藏夹</a></p>
                  <p><a class="green" href="javascript:;" @click="deleteCart(item)">删除</a></p>
                  <p><a href="javascript:;">找相似</a></p>
                </td>
              </tr>
            </tbody>
            <!-- 无效商品 -->
            <tbody v-if="$store.getters['cart/unValidGoods'].length > 0">
              <tr><td colspan="6"><h3 class="tit">失效商品</h3></td></tr>
              <tr v-for="item in $store.getters['cart/unValidGoods']" :key="item.skuId">
                <td><XtxCheckbox style="color:#eee;" /></td>
                <td>
                  <div class="goods">
                    <RouterLink :to="`/product/${item.id}`"><img :src="item.picture" alt=""></RouterLink>
                    <div>
                      <p class="name ellipsis">{{item.name}}</p>
                      <p class="attr">{{item.attrsText}}</p>
                    </div>
                  </div>
                </td>
                <td class="tc"><p>&yen;{{item.nowPrice}}</p></td>
                <td class="tc">{{item.count}}</td>
                <td class="tc"><p>&yen;{{item.nowPrice*100*item.count/100}}</p></td>
                <td class="tc">
                  <p><a class="green" href="javascript:;" @click="deleteCart(item)">删除</a></p>
                  <p><a href="javascript:;">找相似</a></p>
                </td>
              </tr>
            </tbody>
          </table>
        </div>
        <!-- 操作栏 -->
        <div class="action">
          <div class="batch">
            <XtxCheckbox :modelValue="$store.getters['cart/isAllSelect']" @change="checkAll">全选</XtxCheckbox>
            <a href="javascript:;" @click="bathDeleteCart()">删除商品</a>
            <a href="javascript:;">移入收藏夹</a>
            <a href="javascript:;"  @click="bathDeleteCart(true)">清空失效商品</a>
          </div>
          <div class="total">
            共 {{$store.getters['cart/validCount']}} 件商品，已选择 {{$store.getters['cart/selectGoodsCount']}} 件，商品合计：
            <span class="red">¥{{ $store.getters['cart/selectGoodsTotal'] }}</span>
            <XtxButton type="primary" @click="changeTz()">下单结算</XtxButton>
          </div>
        </div>
        <!-- 猜你喜欢 -->
        <GoodRelevant />
      </div>
    </div>
  </template>
  <script>
  import GoodRelevant from '@/views/goods/components/goods_relevant.vue'
import { useStore } from 'vuex'
 import Message from '@/components/library/xtx-message.js'
 import Confirm from '@/components/library/confirm.js'
import CartNone  from './components/cart-none.vue'
import CartSku  from './components/cart-sku.vue'
import { useRouter } from 'vue-router'
  export default {
    name: 'XtxCartPage',
    components: { GoodRelevant, CartNone, CartSku  },
    setup () {
        //改变单选框状态
        const store = useStore()
        const checkOne = (skuId, selected) => {
            store.dispatch('cart/updateCart', {skuId, selected})
        }

        //改变全选
        const checkAll = (selected) => {
            store.dispatch('cart/updateAll', selected)
        }

        //删除购物车
        const deleteCart = (item) => {
            // store.dispatch('cart/deleteCart', skuId).then(() => {
            //     Message({type: 'success', text: '删除成功'})
            // }).catch(e => {
            //     Message({type: 'error', text: '删除失败'})
            // })
            Confirm({ text: '您确定从购物车删除该商品吗？' }).then(() => {
                store.dispatch('cart/deleteCart', item.skuId).then(() => {
                    Message({type: 'success', text: '删除成功'})
                })
            }).catch(e => {
                // console.log('点击取消')
            })
        }

        //批量删除已选中商品
        const bathDeleteCart = (isClear) => {
            Confirm({ text: `您确定从购物车删除${isClear? '失效': '已选中'}的商品吗？` }).then(() => {
                store.dispatch('cart/bathDeleteCart').then(() => {
                    Message({type: 'success', text: '删除成功'})
                })
            }).catch(e => {
                // console.log('点击取消')
            })
        }

        //修改购物车商品的数量
        const updateCount = (skuId, count) => {
            store.dispatch('cart/updateCart', {skuId, count})
        }

        //修改sku信息
        const updateCart = (oldSkuId, newSku) => {
            store.dispatch('cart/updateCartSku', {oldSkuId, newSku})
        }

        //下单结算
        //判断是否有已选中的商品，提示信息
        //跳转到结算页
        //导航守卫
        const router = useRouter()
        const changeTz = () => {
            if(store.getters['cart/selectGoodsList'] === 0) return Message({ text: '至少选中一件商品才能结算' })
            if(!store.state.user.profile.token) {
                Confirm({text: '下单结算需要登录，您是否去登录？'}).then(() => {
                    //点击确认
                    router.push('/member/checkout')
                }).catch(e => {})
            } else {
                router.push('/member/checkout')
            }
            
        }


        return {checkOne, checkAll, deleteCart, bathDeleteCart, updateCount,updateCart, changeTz}
    }
  }
  </script>
  <style scoped lang="less">
  .tc {
    text-align: center;
    .xtx-numbox {
      margin: 0 auto;
      width: 120px;
    }
  }
  .red {
    color: @priceColor;
  }
  .green {
    color: @xtxColor
  }
  .f16 {
    font-size: 16px;
  }
  .goods {
    display: flex;
    align-items: center;
    img {
      width: 100px;
      height: 100px;
    }
    > div {
      width: 280px;
      font-size: 16px;
      padding-left: 10px;
      .attr {
        font-size: 14px;
        color: #999;
      }
    }
  }
  .action {
    display: flex;
    background: #fff;
    margin-top: 20px;
    height: 80px;
    align-items: center;
    font-size: 16px;
    justify-content: space-between;
    padding: 0 30px;
    .xtx-checkbox {
      color: #999;
    }
    .batch {
      a {
        margin-left: 20px;
      }
    }
    .red {
      font-size: 18px;
      margin-right: 20px;
      font-weight: bold;
    }
  }
  .tit {
    color: #666;
    font-size: 16px;
    font-weight: normal;
    line-height: 50px;
  }
  .xtx-cart-page {
    .cart {
      background: #fff;
      color: #666;
      table {
        border-spacing: 0;
        border-collapse: collapse;
        line-height: 24px;
        th,td{
          padding: 10px;
          border-bottom: 1px solid #f5f5f5;
          &:first-child {
            text-align: left;
            padding-left: 30px;
            color: #999;
          }
        }
        th {
          font-size: 16px;
          font-weight: normal;
          line-height: 50px;
        }
      }
    }
  }
  </style>